source 'https://rubygems.org' # Specify your gem's dependencies in neo-rails.gemspec gemspec rails_version = ENV['RAILS_VERSION'] case rails_version when '4.1.6' gem 'rails', '~> 4.1.6' when '4.1' gem 'rails', '~> 4.1.0' when '4.0' gem 'rails', '~> 4.0.0' when '3.2' gem 'rails', '~> 3.2.13' when NilClass abort "Missing env RAILS_VERSION" else abort "Rails version #{rails_version.inspect} not supported" end